I'm looking for a specific Linux kernel built by Lenovo: '4.15.0-1053-oem', as detailed in this Ubuntu certification:
My Dolby microphone does not work because there are no open-source drivers available. I'm guessing the OEM kernel would probably have this compiled specifically for this hardware, however my laptop did not ship with OEM Ubuntu. I'm wondering whether Lenovo has a package archive of kernels you could wget or something.
01 Answer
The -oem branch of the kernel is used by the Ubuntu Kernel Team.
Take a look at their wiki page for a lot of good information.
Basically, OEM kernels are temporary workarounds for new OEM hardware until the next stock kernel is created. In other words, the features of an 18.04 OEM kernel should have been rolled into stock 18.10, 19.04, 19.10, etc. newer kernels. There are no OEM kernel packages in the repositories - they are merely compiled for the OEM.
Try your hardware with the current (19.10) kernel, and see if it solves your problem. If not, you can visit the OEM kernel code repository, pull rev 1053, and compile it yourself if you happen to have those skills. Generally, compiling it yourself should NOT be necessary. The Ubuntu kernel devs work very hard to fold new features into the stock kernel in a timely manner.
Note that the testing result page that you linked to did not indicate full compatibility with some audio hardware. Happily, almost two years later, there is a good likelihood that newer kernels may work better with that hardware.
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